Just two months ago, Ford Motor launched a trial of a software system meant to enable communication between its plug-in vehicles and the power grid, by way of smart meters and a Zigbee wireless connection. At the time, Ford’s Nancy Gioia, recently named director of Ford Global Electrification, told us Ford would consider developing a production version of the system. While it won’t be ready for the first generation of plug-in vehicles, Gioia said today at an event in San Francisco, that “by 2013-2015, this ought to be rolling out.”